tomato; diced
Tomatoes are rich in lycopene, a carotenoid antioxidant with higher bioavailability when cooked, alongside vitamin C, potassium, and folate. One cup of fresh diced tomatoes contains approximately 30 calories and 3 grams of fiber.
About
The tomato (Solanum lycopersicum) is a berry-producing plant of the nightshade family, native to Mesoamerica and domesticated by indigenous peoples of Mexico. The fruit is a round to oblong structure containing numerous small seeds surrounded by gel-filled chambers, with thin skin ranging from green when unripe to red, orange, yellow, or brown when mature. The flavor profile of ripe tomatoes balances natural acidity (citric and malic acids) with umami-rich glutamates and subtle sweetness, varying significantly with variety, growing conditions, and ripeness. Key culinary varieties include San Marzano (elongated, meaty, low-seed paste tomatoes), Beefsteak (large, slicing types), Cherry (small, sweet), Heirloom (diverse shapes and colors with complex flavor), and Roma (compact, paste-type).
Diced tomatoes represent the fruit cut into small cubes, ranging from roughly ¼-inch to ½-inch pieces, typically with skin and seeds intact unless specified otherwise. Dicing preserves the cell structure and prevents excessive release of liquid, making it ideal for raw applications or dishes requiring distinct tomato pieces rather than a sauce.
Culinary Uses
Diced tomatoes serve as a fundamental ingredient across global cuisines, functioning both as a fresh component and a textural element. In raw applications, diced fresh tomatoes appear in salads (Caprese, Greek salad), salsas, gazpacho, and ceviche, where their crisp texture and bright acidity are prized. In cooked preparations, diced tomatoes are incorporated into stews, curries, braises, and grain dishes (risotto, paella), providing body and subtle thickening through their natural pectin while maintaining visible tomato chunks rather than dissolving into a sauce. Canned diced tomatoes—preserved by rapid processing and canning at peak ripeness—serve as a shelf-stable alternative with distinct concentrated flavor, commonly used in Italian, Latin American, and Middle Eastern cooking. Proper draining or salting of fresh diced tomatoes before use in delicate dishes prevents excess moisture from compromising texture.